added new examples for find

cheatsheets/find

@@ -1,4 +1,4 @@
-# To find files by extension (ex: .jpg):
+# To find files by cas insensitive extension (ex: .jpg, .JPG, .jpG):
 find . -iname "*.jpg"
 
 # To find directories:
@@ -12,3 +12,13 @@ find . -type f -perm 777
 
 # To find files with setuid bit set:
 find . -xdev \( -perm -4000 \) -type f -print0 | xargs -0 ls -l
+
+# To find files with extension '.txt' and remove them:
+find ./path/ -name '*.txt' -exec rm {} \;
+
+# To find files with extension '.txt' and look for a string into them:
+find ./path/ -name '*.txt' | xargs grep 'string'
+
+# To find files with size bigger than 5 Mb and sort them by size:
+find ./ -size +5M -type f -print0 | xargs -0 ls -Ssh
+